= WiimoteIRPen

Johnny Lee showed a way to adopt Jeff Han's multitouch display idea for a cost of less than 50 $.

== Hardware * a Wii Remote (Wiimote) * a pen casing big enough to hold a battery, e.g. a Franken Z 1908 03 or maybe this LED pen lamp * a battery that fits into the pen casing, e.g. this one * a small push button, e.g. T 602 * an IR emitter

== Software

http://www.uweschmidt.org/comment/303

=== Deprecated

As I run my private computer on Gentoo Linux, I followed the instructions at http://gentoo-wiki.com/HOWTO_Configure_a_Wiimote_as_an_Electronic_Whiteboard

Windows users may use the software from http://www.cs.cmu.edu/~johnny/projects/wii/

== Experience

The software worked fine, but sadly I didn't succeed getting the reflection from neither my LCD monitor (Iiyama ProLite H481S-B) nor a white wall bright enough to be seen by the wiimote.

===Measures

Circuit: battery, battery holder plus diode.

Trivial circuit: battery and diode:

The results are similar for a battery soldered into the circuit - so I think this didn't damage the battery.

===More candidates

More: Conrad catalogue Conrad catalogue P. 1446

== A more slim pen * Pushbutton T 602 * IR LED 175322 (1.5V, 50mA, 120 mW/sr)

The opto-electronics is built right into the tip of the pen (took me 5h). Next comes the power supply.